<style lang="less">
    @import "../../../styles/tree&table-common.less";
</style>
<template>
    <div class="search">
        <Card>
            <Row type="flex" justify="space-between">
                <Col v-if="expand" span="5">
                    <Alert show-icon>
                        当前选择：
                        <span class="select-title">{{ editTitle }}</span>
                        <a class="select-clear" v-if="editTitle" @click="cancelEdit">取消选择</a>
                    </Alert>
                    <Input
                            v-model="searchKey"
                            suffix="ios-search"
                            @on-change="search"
                            placeholder="输入节点名搜索"
                            clearable
                    />
                    <div class="tree-bar" :style="{ maxHeight: maxHeight }">
                        <Tree
                                ref="tree"
                                :data="treeData"
                                :load-data="loadData"
                                @on-select-change="selectTree"></Tree>
                        <Spin size="large" fix v-if="treeLoading"></Spin>
                    </div>
                </Col>
                <div class="expand">
                    <Icon
                            :type="expandIcon"
                            size="16"
                            class="icon"
                            @click="changeExpand"
                    />
                </div>
                <Col :span="span">
                    <Row>
                        <Form ref="searchForm" :model="searchForm" inline :label-width="50">
                            <FormItem label="名称" prop="name">
                                <Input
                                        type="text"
                                        v-model="searchForm.name"
                                        placeholder="请输入"
                                        clearable
                                        style="width: 200px"
                                />
                            </FormItem>
                            <FormItem label="状态" prop="status">
                                <Select
                                        v-model="searchForm.status"
                                        placeholder="请选择"
                                        clearable
                                        style="width: 200px">
                                    <Option value="0">正常</Option>
                                    <Option value="-1">禁用</Option>
                                </Select>
                            </FormItem>
                            <FormItem style="margin-left: -35px" class="br">
                                <Button @click="handleSearch" type="primary" icon="ios-search">搜索</Button>
                                <Button @click="handleReset">重置</Button>
                            </FormItem>
                        </Form>
                    </Row>
                    <Row class="operation">
                        <Button @click="add" type="primary" icon="md-add">添加</Button>
                        <Button @click="delAll" icon="md-trash">删除</Button>
                        <Button @click="getDataList" icon="md-refresh">刷新</Button>
                    </Row>
                    <Row>
                        <Alert show-icon>
                            已选择
                            <span class="select-count">{{ selectList.length }}</span> 项
                            <a class="select-clear" @click="clearSelectAll">清空</a>
                        </Alert>
                    </Row>
                    <Row>
                        <Table
                                :loading="loading"
                                border
                                :columns="columns"
                                :data="data"
                                sortable="custom"
                                @on-sort-change="changeSort"
                                @on-selection-change="showSelect"
                                ref="table"></Table>
                    </Row>
                    <Row type="flex" justify="end" class="page">
                        <Page
                                :current="searchForm.page.current"
                                :total="searchForm.page.total"
                                :page-size="searchForm.page.size"
                                @on-change="changePage"
                                @on-page-size-change="changesize"
                                :page-size-opts="[10, 20, 50]"
                                size="small"
                                show-total
                                show-elevator
                                show-sizer></Page>
                    </Row>
                </Col>
            </Row>
        </Card>

        <Modal
                :title="modalTitle"
                v-model="modalVisible"
                :mask-closable="false"
                :width="500">
            <Form ref="form" :model="form" :label-width="70" :rules="formValidate">
                <FormItem label="名称" prop="name">
                    <Input v-model="form.name"/>
                </FormItem>
            </Form>
            <div slot="footer">
                <Button type="text" @click="modalVisible = false">取消</Button>
                <Button type="primary" :loading="submitLoading" @click="handelSubmit">提交</Button>
            </div>
        </Modal>
    </div>
</template>

<script>
    export default {
        name: "treeAndTable",
        data() {
            return {
                treeLoading: false, // 树加载状态
                maxHeight: "500px",
                loading: false, // 表加载状态
                editTitle: "", // 编辑节点名称
                searchKey: "", // 搜索树
                expand: true,
                span: 18,
                expandIcon: "ios-arrow-back",
                selectNode: {},
                treeData: [], // 树数据
                selectList: [], // 多选数据
                searchForm: {
                    // 搜索框对应data对象
                    name: "",
                    status: "",
                    page: {
                        current: 1, // 当前页数
                        size: 10, // 页面大小
                        total: 0, // 表单数据总数
                    },
                    sort: "createTime", // 默认排序字段
                    order: "desc", // 默认排序方式
                },
                modalType: 0, // 添加或编辑标识
                modalVisible: false, // 添加或编辑显示
                modalTitle: "", // 添加或编辑标题
                form: {
                    // 添加或编辑表单对象初始化数据
                    name: "",
                    sex: 1,
                    type: 0,
                },
                formValidate: {
                    // 表单验证规则
                    name: [{required: true, message: "不能为空", trigger: "change"}],
                },
                columns: [
                    // 表头
                    {
                        type: "selection",
                        width: 60,
                        align: "center",
                    },
                    {
                        type: "index",
                        width: 60,
                        align: "center",
                    },
                    {
                        title: "名称",
                        key: "name",
                        minWidth: 200,
                        sortable: true,
                    },
                    {
                        title: "描述",
                        key: "description",
                        minWidth: 200,
                        sortable: true,
                    },
                    {
                        title: "状态",
                        key: "status",
                        align: "center",
                        width: 150,
                        render: (h, params) => {
                            let re = "";
                            if (params.row.status == 0) {
                                return h("div", [
                                    h("Badge", {
                                        props: {
                                            status: "success",
                                            text: "启用",
                                        },
                                    }),
                                ]);
                            } else if (params.row.status == -1) {
                                return h("div", [
                                    h("Badge", {
                                        props: {
                                            status: "error",
                                            text: "禁用",
                                        },
                                    }),
                                ]);
                            }
                        },
                    },
                    {
                        title: "创建时间",
                        key: "createTime",
                        width: 200,
                        sortable: true,
                        sortType: "desc",
                    },
                    {
                        title: "操作",
                        key: "action",
                        width: 150,
                        align: "center",
                        fixed: "right",
                        render: (h, params) => {
                            return h("div", [
                                h(
                                    "a",
                                    {
                                        on: {
                                            click: () => {
                                                this.edit(params.row);
                                            },
                                        },
                                    },
                                    "编辑"
                                ),
                                h("Divider", {
                                    props: {
                                        type: "vertical",
                                    },
                                }),
                                h(
                                    "a",
                                    {
                                        on: {
                                            click: () => {
                                                this.remove(params.row);
                                            },
                                        },
                                    },
                                    "删除"
                                ),
                            ]);
                        },
                    },
                ],
                submitLoading: false, // 添加或编辑提交状态
                data: [], //表单数据
                total: 0, // 表单数据总数
            };
        },
        methods: {
            init() {
                // 初始化一级节点
                this.getParentList();
                // 获取表单数据
                this.getDataList();
            },
            getParentList() {
                // this.treeLoading = true;
                // this.this.$http("一级数据请求路径，如/tree/getByParentId/0").then(res => {
                //   this.treeLoading = false;
                //   if (res.status==200) {
                //     res.result.forEach(function(e) {
                //       if (e.isParent) {
                //         e.loading = false;
                //         e.children = [];
                //       }
                //     });
                //     this.treeData = res.result;
                //   }
                // });
                // 模拟请求成功
                this.treeData = [
                    {
                        title: "一级1",
                        id: "1",
                        parentId: "0",
                        parentTitle: "一级节点",
                        status: 0,
                        loading: false,
                        children: [
                            {
                                title: "二级1",
                                id: "2",
                                parentId: "1",
                                status: 0,
                                parentTitle: "一级1",
                            },
                        ],
                    },
                    {
                        title: "一级2",
                        id: "3",
                        parentId: "0",
                        parentTitle: "一级节点",
                        status: 0,
                    },
                ];
            },
            loadData(item, callback) {
                // 异步加载树子节点数据
                // this.this.$http("请求路径，如/tree/getByParentId/" + item.id).then(res => {
                //   if (res.status==200) {
                //     res.result.forEach(function(e) {
                //       if (e.isParent) {
                //         e.loading = false;
                //         e.children = [];
                //       }
                //     });
                //     callback(res.result);
                //   }
                // });
            },
            search() {
                // 搜索树
                if (this.searchKey) {
                    // 模拟请求
                    // this.treeLoading = true;
                    // this.this.$http("搜索请求路径", { title: this.searchKey }).then(res => {
                    //   this.treeLoading = false;
                    //   if (res.status==200) {
                    //     this.treeData = res.result;
                    //   }
                    // });
                    // 模拟请求成功
                    this.treeData = [
                        {
                            title: "这里需要请求后端接口",
                            id: "1",
                            parentId: "0",
                            parentTitle: "一级节点",
                            status: 0,
                        },
                        {
                            title: "所以这里是假数据",
                            id: "4",
                            parentId: "0",
                            parentTitle: "一级节点",
                            status: 0,
                        },
                        {
                            title: "我是被禁用的节点",
                            id: "5",
                            parentId: "0",
                            parentTitle: "一级节点",
                            status: -1,
                        },
                    ];
                } else {
                    // 为空重新加载
                    this.getParentList();
                }
            },
            selectTree(v) {
                if (v.length > 0) {
                    // 转换null为""
                    for (let attr in v[0]) {
                        if (v[0][attr] == null) {
                            v[0][attr] = "";
                        }
                    }
                    let str = JSON.stringify(v[0]);
                    let data = JSON.parse(str);
                    this.selectNode = data;
                    this.editTitle = data.title;
                    // 重新加载表
                    this.getDataList();
                } else {
                    this.cancelEdit();
                }
            },
            cancelEdit() {
                let data = this.$refs.tree.getSelectedNodes()[0];
                if (data) {
                    data.selected = false;
                }
                // 取消选择后获取全部数据
                this.selectNode = {};
                this.editTitle = "";
                this.getDataList();
            },
            changeSelect(v) {
                this.selectList = v;
            },
            changeExpand() {
                this.expand = !this.expand;
                if (this.expand) {
                    this.expandIcon = "ios-arrow-back";
                    this.span = 18;
                } else {
                    this.expandIcon = "ios-arrow-forward";
                    this.span = 23;
                }
            },
            changePage(v) {
                this.searchForm.page.current = v;
                this.getDataList();
                this.clearSelectAll();
            },
            changesize(v) {
                this.searchForm.page.size = v;
                this.getDataList();
            },
            getDataList() {
                this.loading = true;
                // 根据用户选择树加载表数据
                this.searchForm.selectId = this.selectNode.id;
                // 带多条件搜索参数获取表单数据 请自行修改接口
                // this.this.$http("请求路径", this.searchForm).then(res => {
                //   this.loading = false;
                //   if (res.status==200) {
                //     this.data = res.result.content;
                //     this.page.total = res.result.totalElements;
                //     if (this.data.length == 0 && this.searchForm.page.current > 1) {
                //       this.searchForm.page.current -= 1;
                //       this.getDataList();
                //     }
                //   }
                // });
                // 模拟表格变化 模拟数据
                if (!this.selectNode.id) {
                    // id为null获取全部数据
                    this.data = [
                        {
                            id: "1",
                            name: "XBoot",
                            description: "我是一级1的数据",
                            status: 0,
                            createTime: "2018-08-08 00:08:00",
                        },
                        {
                            id: "2",
                            name: "MR.Deer",
                            description: "我是二级1的数据",
                            status: 0,
                            createTime: "2018-08-08 00:08:00",
                        },
                        {
                            id: "3",
                            name: "XBoot",
                            description: "我是一级2的数据",
                            status: -1,
                            createTime: "2018-08-08 00:08:00",
                        },
                    ];
                } else if (this.selectNode.id == "1") {
                    this.data = [
                        {
                            id: "1",
                            name: "XBoot",
                            description: "我是一级1的数据",
                            status: 0,
                            createTime: "2018-08-08 00:08:00",
                        },
                    ];
                } else if (this.selectNode.id == "2") {
                    this.data = [
                        {
                            id: "2",
                            name: "MR.Deer",
                            description: "我是二级1的数据",
                            status: 0,
                            createTime: "2018-08-08 00:08:00",
                        },
                    ];
                } else if (this.selectNode.id == "3") {
                    this.data = [
                        {
                            id: "3",
                            name: "Present By MR.Deer",
                            description: "我是一级2的数据",
                            status: -1,
                            createTime: "2018-08-08 00:08:00",
                        },
                    ];
                }
                this.page.total = this.data.length;
                this.loading = false;
            },
            handleSearch() {
                this.searchForm.page.current = 1;
                this.searchForm.page.size = 10;
                this.getDataList();
            },
            handleReset() {
                this.$refs.searchForm.resetFields();
                this.searchForm.page.current = 1;
                this.searchForm.page.size = 10;
                // 重新加载数据
                this.getDataList();
            },
            changeSort(e) {
                this.searchForm.sort = e.key;
                this.searchForm.order = e.order;
                if (e.order == "normal") {
                    this.searchForm.order = "";
                }
                this.getDataList();
            },
            showSelect(e) {
                this.selectList = e;
            },
            clearSelectAll() {
                this.$refs.table.selectAll(false);
            },
            add() {
                this.modalType = 0;
                this.modalTitle = "添加";
                this.$refs.form.resetFields();
                this.modalVisible = true;
            },
            edit(v) {
                this.modalType = 1;
                this.modalTitle = "编辑";
                this.$refs.form.resetFields();
                // 转换null为""
                for (let attr in v) {
                    if (v[attr] == null) {
                        v[attr] = "";
                    }
                }
                let str = JSON.stringify(v);
                let data = JSON.parse(str);
                this.form = data;
                this.modalVisible = true;
            },
            handelSubmit() {
                this.$refs.form.validate((valid) => {
                    if (valid) {
                        this.submitLoading = true;
                        if (this.modalType == 0) {
                            // 添加 避免编辑后传入id等数据 记得删除
                            delete this.form.id;
                            delete this.form.status;
                            // this.this.$http("请求路径", this.form).then(res => {
                            //   this.submitLoading = false;
                            //   if (res.status==200) {
                            //     this.$Message.success("操作成功");
                            //     this.getDataList();
                            //     this.modalVisible = false;
                            //   }
                            // });
                            // 模拟成功
                            this.submitLoading = false;
                            this.$Message.success("操作成功");
                            this.modalVisible = false;
                        } else if (this.modalType == 1) {
                            // 编辑
                            // this.this.$http("请求路径", this.form).then(res => {
                            //   this.submitLoading = false;
                            //   if (res.status==200) {
                            //     this.$Message.success("操作成功");
                            //     this.getDataList();
                            //     this.modalVisible = false;
                            //   }
                            // });
                            // 模拟成功
                            this.submitLoading = false;
                            this.$Message.success("操作成功");
                            this.modalVisible = false;
                        }
                    }
                });
            },
            remove(v) {
                this.$Modal.confirm({
                    title: "确认删除",
                    // 记得确认修改此处
                    content: "您确认要删除 " + v.name + " ?",
                    loading: true,
                    onOk: () => {
                        // 删除
                        // this.deleteRequest("请求地址，如/deleteByIds/" + v.id).then(res => {
                        //   this.$Modal.remove();
                        //   if (res.status==200) {
                        //     this.$Message.success("操作成功");
                        //     this.clearSelectAll();
                        //     this.getDataList();
                        //   }
                        // });
                        // 模拟请求成功
                        this.$Message.success("操作成功");
                        this.clearSelectAll();
                        this.$Modal.remove();
                        this.getDataList();
                    },
                });
            },
            delAll() {
                if (this.selectList.length <= 0) {
                    this.$Message.warning("您还未选择要删除的数据");
                    return;
                }
                this.$Modal.confirm({
                    title: "确认删除",
                    content: "您确认要删除所选的 " + this.selectList.length + " 条数据?",
                    loading: true,
                    onOk: () => {
                        let ids = "";
                        this.selectList.forEach(function (e) {
                            ids += e.id + ",";
                        });
                        ids = ids.substring(0, ids.length - 1);
                        // 删除
                        // this.deleteRequest("请求地址，如/deleteByIds/" + ids).then(res => {
                        //   this.$Modal.remove();
                        //   if (res.status==200) {
                        //     this.$Message.success("操作成功");
                        //     this.clearSelectAll();
                        //     this.getDataList();
                        //   }
                        // });
                        // 模拟请求成功
                        this.$Message.success("操作成功");
                        this.$Modal.remove();
                        this.clearSelectAll();
                        this.getDataList();
                    },
                });
            },
        },
        mounted() {
            // 计算高度
            let height = document.documentElement.clientHeight;
            this.maxHeight = Number(height - 287) + "px";
            this.init();
        },
    };
</script>